TY  - RPRT
TI  - Morphine conditioned place preference in the hamster.
AU  - P Schnur
AU  - J Morrell
PY  - 1990
DO  - 10.1016/0091-3057(90)90353-j
UR  - https://pubmed.ncbi.nlm.nih.gov/2080198/
ID  - 2080198
ER  -